Are the services managed by systemd implemented based on sockets?












1















Are all (or most) of the services managed by systemd (or sysvinit) implemented based on sockets (either internet or unix domain sockets)?



I have this question, because I am not sure what the concept "service" is. I guess it means a server that communicates with its clients via sockets?



Thanks.






systemd services







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  • No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

    – 炸鱼薯条德里克
    4 hours ago
















1















Are all (or most) of the services managed by systemd (or sysvinit) implemented based on sockets (either internet or unix domain sockets)?



I have this question, because I am not sure what the concept "service" is. I guess it means a server that communicates with its clients via sockets?



Thanks.






systemd services







share|improve this question























  • No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

    – 炸鱼薯条德里克
    4 hours ago














1












1








1








Are all (or most) of the services managed by systemd (or sysvinit) implemented based on sockets (either internet or unix domain sockets)?



I have this question, because I am not sure what the concept "service" is. I guess it means a server that communicates with its clients via sockets?



Thanks.






systemd services







share|improve this question














Are all (or most) of the services managed by systemd (or sysvinit) implemented based on sockets (either internet or unix domain sockets)?



I have this question, because I am not sure what the concept "service" is. I guess it means a server that communicates with its clients via sockets?



Thanks.






systemd services




systemd services






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asked 4 hours ago









TimTim

27.9k78269486




27.9k78269486













  • No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

    – 炸鱼薯条德里克
    4 hours ago



















  • No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

    – 炸鱼薯条德里克
    4 hours ago

















No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

– 炸鱼薯条德里克
4 hours ago





No strictly defined concept. For systemd, it's the . service units, or say the corresponding runtime cgroups. Services are implemented all by their own, sockets may or may not be involved.

– 炸鱼薯条德里克
4 hours ago










1 Answer
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A systemd service is just something that systemd can run and manage. So, for example, systemd-firstboot.service is a service that is started the first time after the system is installed, and it performs some configuration, then stops. systemd-fsck-root.service will check the root disk on reboot. And so on.



A fair number of services act as servers (eg cups.service) but not all.



From man systemd.service



   A unit configuration file whose name ends in .service encodes

   information about a process controlled and supervised by systemd.





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    A systemd service is just something that systemd can run and manage. So, for example, systemd-firstboot.service is a service that is started the first time after the system is installed, and it performs some configuration, then stops. systemd-fsck-root.service will check the root disk on reboot. And so on.



    A fair number of services act as servers (eg cups.service) but not all.



    From man systemd.service



       A unit configuration file whose name ends in .service encodes
    
   information about a process controlled and supervised by systemd.





    share|improve this answer




























      3














      A systemd service is just something that systemd can run and manage. So, for example, systemd-firstboot.service is a service that is started the first time after the system is installed, and it performs some configuration, then stops. systemd-fsck-root.service will check the root disk on reboot. And so on.



      A fair number of services act as servers (eg cups.service) but not all.



      From man systemd.service



         A unit configuration file whose name ends in .service encodes
      
   information about a process controlled and supervised by systemd.





      share|improve this answer


























        3












        3








        3







        A systemd service is just something that systemd can run and manage. So, for example, systemd-firstboot.service is a service that is started the first time after the system is installed, and it performs some configuration, then stops. systemd-fsck-root.service will check the root disk on reboot. And so on.



        A fair number of services act as servers (eg cups.service) but not all.



        From man systemd.service



           A unit configuration file whose name ends in .service encodes
        
   information about a process controlled and supervised by systemd.





        share|improve this answer













        A systemd service is just something that systemd can run and manage. So, for example, systemd-firstboot.service is a service that is started the first time after the system is installed, and it performs some configuration, then stops. systemd-fsck-root.service will check the root disk on reboot. And so on.



        A fair number of services act as servers (eg cups.service) but not all.



        From man systemd.service



           A unit configuration file whose name ends in .service encodes
        
   information about a process controlled and supervised by systemd.






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 4 hours ago









        Stephen HarrisStephen Harris

        26.8k35181




        26.8k35181






























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